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If you have any of the following problems you may want to check the site www.TvRepairKits.com for a repair kit. Most of the issue below are fairly common with the older Magnavox projection sets. Symptom: Screen shrinks and expands - may or may not correct itself after the TV warms up. After a few days, weeks, or months of having the shrinking/expanding problem you may loose all audio/video but the power light will remain lit!

If you have any of the following problems you may want to check the site www.tvrepairkits.com for a repair kit. Most of the issue below are fairly common with the older Magnavox projection sets.

Symptom: Screen shrinks and expands - may or may not correct itself after the TV warms up. After a few days, weeks, or months of having the shrinking/expanding problem you may loose all audio/video but the power light will remain lit!

(Note: The below symptoms typicaly occurs after having the expanding/shrinking screen problem above)

philips part# 483520988561 actual part# HCNW136 opto coupler datasheet at datasheetcatalog.com can buy many places just enter it on google.
other fixes philips part# 483520987834 actual # MC34065p and philips# 483520987712 actual# SC78104 some change all 3 and never have a problem again.